Final answer:
The Richard power plant in Holbrook, Long Island can serve approximately 25 households.
Step-by-step explanation:
To determine how many households the Richard power plant in Holbrook, Long Island can serve, we need to divide its net dependable capability by the average power consumption of a household.
Given that the power plant has a net dependable capability of 135,000 kilowatts and an average household uses electricity at a rate of 5400 watts, we can calculate:
Number of households = Net dependable capability / Average power consumption per household
Number of households = 135,000 kilowatts / 5400 watts
Number of households = 25 households
Therefore, the Richard power plant can serve approximately 25 households.